/*
 GNU Maverik - a system for managing display and interaction in 
               Virtual Environment applications.
 Copyright (C) 1999 Advanced Interfaces Group

 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License
 as published by the Free Software Foundation; either version 2
 of the License, or (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA


 The authors can be contacted via:
 www   - http://aig.cs.man.ac.uk
 email - maverik@aig.cs.man.ac.uk
 mail  - Advanced Interfaces Group, Room 2.94, Computer Science Building, 
         University of Manchester, Manchester, M13 9PL, UK
*/


#include "mavlib_cvcomp.h"

/******************************************************************
*
*	VRML library for C++
*
*	Copyright (C) Satoshi Konno 1996-1997
*
*	File:	PointLightNode.h
*
******************************************************************/

#ifndef _POINTLIGHT_H_
#define _POINTLIGHT_H_

#include "LightNode.h"

class PointLightNode : public LightNode {

public:

	PointLightNode() {
		setHeaderFlag(false);
		setType(pointLightNodeString);

		// ambient intensity exposed field
		SFFloat *ambientIntensity = new SFFloat(0.0f);
		ambientIntensity->setName(ambientIntensityFieldString);
		addExposedField(ambientIntensity);

		// location exposed field
		SFVec3f *location = new SFVec3f(0.0f, 0.0f, 0.0f);
		location->setName(locationFieldString);
		addExposedField(location);

		// radius exposed field
		SFFloat *radius = new SFFloat(100.0f);
		radius->setName(radiusFieldString);
		addExposedField(radius);

		// attenuation exposed field
		SFVec3f *attenuation = new SFVec3f(1.0f, 0.0f, 0.0f);
		attenuation->setName(attenuationFieldString);
		addExposedField(attenuation);
	}

	~PointLightNode() {
	}

	////////////////////////////////////////////////
	//	AmbientIntensity
	////////////////////////////////////////////////
	
	void setAmbientIntensity(float value) {
		SFFloat *intensity = (SFFloat *)getExposedField(ambientIntensityFieldString);
		intensity->setValue(value);
	}
	float getAmbientIntensity() {
		SFFloat *intensity = (SFFloat *)getExposedField(ambientIntensityFieldString);
		return intensity->getValue();
	}

	////////////////////////////////////////////////
	//	Location
	////////////////////////////////////////////////

	void setLocation(float value[]) {
		SFVec3f *location = (SFVec3f *)getExposedField(locationFieldString);
		location->setValue(value);
	}
	void setLocation(float x, float y, float z) {
		SFVec3f *location = (SFVec3f *)getExposedField(locationFieldString);
		location->setValue(x, y, z);
	}
	void getLocation(float value[]) {
		SFVec3f *location = (SFVec3f *)getExposedField(locationFieldString);
		location->getValue(value);
	}

	////////////////////////////////////////////////
	//	Radius
	////////////////////////////////////////////////
	
	void setRadius(float value) {
		SFFloat *radius = (SFFloat *)getExposedField(radiusFieldString);
		radius->setValue(value);
	}
	float getRadius() {
		SFFloat *radius = (SFFloat *)getExposedField(radiusFieldString);
		return radius->getValue();
	}

	////////////////////////////////////////////////
	//	Attenuation
	////////////////////////////////////////////////

	void setAttenuation(float value[]) {
		SFVec3f *attenuation = (SFVec3f *)getExposedField(attenuationFieldString);
		attenuation->setValue(value);
	}
	void setAttenuation(float x, float y, float z) {
		SFVec3f *attenuation = (SFVec3f *)getExposedField(attenuationFieldString);
		attenuation->setValue(x, y, z);
	}
	void getAttenuation(float value[]) {
		SFVec3f *attenuation = (SFVec3f *)getExposedField(attenuationFieldString);
		attenuation->getValue(value);
	}

	////////////////////////////////////////////////
	//	Diffuse Color
	////////////////////////////////////////////////

	void getDiffuseColor(float value[]) {
		getColor(value);
		float	intensity = getIntensity();
		value[0] *= intensity;
		value[1] *= intensity;
		value[2] *= intensity;
	}

	////////////////////////////////////////////////
	//	Ambient Color
	////////////////////////////////////////////////

	void getAmbientColor(float value[]) {
		getColor(value);
		float	intensity = getIntensity();
		float	ambientIntensity = getAmbientIntensity();
		value[0] *= intensity * ambientIntensity;
		value[1] *= intensity * ambientIntensity;
		value[2] *= intensity * ambientIntensity;
	}

	////////////////////////////////////////////////
	//	List
	////////////////////////////////////////////////

	PointLightNode *next() {
		return (PointLightNode *)Node::next(getType());
	}

	PointLightNode *nextTraversal() {
		return (PointLightNode *)Node::nextTraversalByType(getType());
	}

	////////////////////////////////////////////////
	//	functions
	////////////////////////////////////////////////
	
	bool isChildNodeType(Node *node){
		return false;
	}

	void initialize() {
	}

	void uninitialize() {
	}

	void update() {
	}

	////////////////////////////////////////////////
	//	Infomation
	////////////////////////////////////////////////

	void outputContext(ostream &printStream, String indentString) {
		SFColor *color = (SFColor *)getExposedField(colorFieldString);
		SFVec3f *attenuation = (SFVec3f *)getExposedField(attenuationFieldString);
		SFVec3f *location = (SFVec3f *)getExposedField(locationFieldString);
		SFBool *bon = (SFBool *)getExposedField(onFieldString);

		printStream << indentString << "\t" << "on " << bon  << endl;
		printStream << indentString << "\t" << "intensity " << getIntensity()  << endl;
		printStream << indentString << "\t" << "ambientIntensity " << getAmbientIntensity()  << endl;
		printStream << indentString << "\t" << "color " << color  << endl;
		printStream << indentString << "\t" << "location " << location  << endl;
		printStream << indentString << "\t" << "radius " << getRadius()  << endl;
		printStream << indentString << "\t" << "attenuation " << attenuation  << endl;
	}
};

#endif
